The Oregon 94019 is a high-quality, durable lawn mower blade designed for Toro 42-inch TimeCutter Z series zero-turn mowers. This blade measures 21-1/2 inches (546.1 mm) in length, 2-1/4 inches (57.15 mm) in width, and 0.150 inches (3.81 mm) in thickness. It features a 5/8-inch (15.875 mm) center hole and two 3/8-inch (9.525 mm) outer holes with a 2-1/2 inch (63.5 mm) center-to-center spacing. It directly replaces several Toro OEM part numbers, including 107-3190, 108-0952, and 110-6568, ensuring a precise fit and optimal cutting performance for models like the TimeCutter Z 4200, 4220, 4235, and 4260.